SilenX IXG-80HA2 ReviewRA1D -
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Now, the fun really starts. In order to stress the GPU, I fired up four instances of the Real Time High Dynamic Range Image Based Lighting (rthdribl) demo and monitored the temps with ATI's Catalyst Control Center. I recorded all temps after 15 minutes in a climate controlled environment with an ambient temperature of 22.2 degrees Celsius. For the stock cooler tests, I manually set the fan speeds to 25% (low) and 100% (high). I also used the ATI Overdrive utility to overclock the video card and recorded those results as well.
- Processor: Intel Core i7 965 Extreme Edition
- Motherboard: ECS X58B-A
- Memory: Corsair Dominator 6GB DDR3-1600
- Video Card(s): Sapphire HD 4850
- Power Supply: Mushkin 800 watt Modular power supply
- Hard Drive: Seagate Barracuda 7200.11 1TB
- Optical Drive: Asus Blu-ray
- OS: Windows Vista Home Premium
- Video Card(s): Sapphire HD 4850 680 core / 1103 memory
There are a couple of valuable observations to make from the results. The most important is the dramatic cooling performance the IXG-80HA2 has when combined with the fan kit. If you compare the stock cooler at 100% with the IXG-80HA2 with fans installed, you will find approximately 20% cooler temps in an idle state and around 30% better under load. Impressive!
Almost as dramatic is the cooler's ability to remain effective without fans and operating in silence. Yes, the IXG-HA2 with no fans performed on par with the stock cooler at 25%. As a word of warning, the copper heatpipes on the heatsink get very hot when used passively.